40250990 has 16 divisors (see below), whose sum is σ = 78025248. Its totient is φ = 14861856.

The previous prime is 40250981. The next prime is 40251007. The reversal of 40250990 is 9905204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154682 + ... + 154941.

It is an arithmetic number, because the mean of its divisors is an integer number (4876578).

Almost surely, 2^40250990 is an apocalyptic number.

40250990 is a deficient number, since it is larger than the sum of its proper divisors (37774258).

40250990 is a wasteful number, since it uses less digits than its factorization.

40250990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309643.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 40250990 is about 6344.3667926752. The cubic root of 40250990 is about 342.7090098337.

The spelling of 40250990 in words is "forty million, two hundred fifty thousand, nine hundred ninety".